Quoted:
After getting rid of the termites, how do you go about figuring out what parts of your house have been eaten?
We just bought a house that had a previous termite infestation, about 15 years ago, that was treated. Our termite inspection came back with no active termites. My husband wanted to rehang the front door because it wasn't level, and discovered that the studs on the hinge side of the door had been totally destroyed. Is there any way for us to determine what else might be damaged? We only discovered this one because he was trying to determine why the screws in the hinges were just spinning...
Regretfully not without tearing out just about every wall and looking.
You can have a termite detecting dog give things a sniff, and then consider further investigations a the locations the dog 'hits' on.
Probably better for subterranean since they produce a damp smell even a human can detect in many cases.
Tenting is for dry wood termites, subterranean termites can usually be followed to the locations in the wood since they build mud tubes and return to the underground nest every day.
An ice pick is a useful tool to use in searching for damage.
it leaves a small enough hole to easily repair in drywall, while letting you tell if a stud is still solid.
Part of the problem is that termites often do not consume an entire stud, so even poking it with an ice pick blind may not hit the damaged area.
The inability to judge damage without major wall removal is one of the chief problems.
I had an older house 1934) tat had significant termite damage.
I was forced to remove the vast majority of the 2-coat plaster to run down the last of the damage.
The subterranean termites had gotten half way up some second floor studs.
Luckily I did not pay to much for the place, and it was in a location that allowed additions to increase the value.